2018
Papers
 PETSc TS: A Modern Scalable ODE/DAE Solver Library. S. Abhyankar, J. Brown, E. Constantinescu, D. Ghosh, B. F. Smith, H. Zhang. ACM Transactions on Mathematical Software (Submitted)
 Load Parameter Estimation by TransmissionDistribution Cosimulation. S. Abhyankar, K. Balasubramaniam, B. Cui. Proceedings of 20th Power Systems Computation Conference, 2018.
 Towards Incorporating Protection and Uncertainty into Cascading Failure Simulation and Analysis. I. Dobson, A. Flueck, S. AquilesPerez, S. Abhyankar, J. Qi, Proceedings of the International Conference on Probabilistic Methods Applied to Power Systems (PMAPS), 2018. (Preprint)
Presentations
 HighPerformance Power System Dynamics (Transient Stability) Simulation. Electrical Engineering Department, Indian Institute of Science, Bengaluru, India.
2017
Papers
 Guest Editorial High Performance Computing (HPC) for a More Resilient and Efficient Power Grid. Z. Huang, Z. Tate, S. Abhyankar, Z. Dong, S. Khaitan, L. Min, and G. Taylor. IEEE Transactions on Smart Grid, Volume 8, Issue 3, pp. 1363 – 1365, April 2017.

Scalable Multiphysics Network Simulation using PETSc DMNetwork. D. Maldonado, S. Abhyankar, B. Smith, and H. Zhang. ACM Transactions on Mathematical Software. (submitted)

VariableStep MultiStage Integration Methods for Fast and Accurate Power System Dynamics Simulation. S. Abhyankar, E. Constantinescu, and A. Flueck. Proceedings of 10th Bulk Power System Dynamics and Control Symposium (IREP 2017), August 2017.

Solution Techniques for Transient Stability Constrained Optimal Power Flow – Part I. S. Abhyankar G. Geng, X. Wang, V. Dinavahi, and M. Anitescu. IET Generation, Transmission, and Distribution special issue on ‘Interfacing Techniques for Simulation Tools in Smart Grids’, 2017.

Solution Techniques for Transient Stability Constrained Optimal Power Flow – Part II. G. Geng, S. Abhyankar, X. Wang, and V. Dinavahi.1 IET Generation, Transmission, and Distribution special issue on ‘Interfacing Techniques for Simulation Tools in Smart Grids’, 2017.

Modeling of Transmission Line Faults for Transient Stability Analysis. S. Abhyankar and Tushar. Proceedings of North American Power Symposium (NAPS), September 2017. (preprint)

A Combined Transmission and Distribution System CoSimulation Framework for Assessing the Impact of Volt/VAR control on Transmission System
K. Balasubramaniam and S. Abhyankar. Proceedings of IEEE PES General Meeting, July 2017. (preprint) 
Discrete Adjoint Sensitivity Analysis of Hybrid Dynamical Systems with Switching. Adjoint Sensitivity Analysis of Hybrid Dynamical Systems with Switching. H. Zhang, S. Abhyankar, E. Constantinescu, M. Anitescu. IEEE Transactions on Circuits and Systems, Vol. 64, Issue 5, pp. 12471259, May 2017, DOI 10.1109/TCSI.2017.2651683

Parallel Dynamics Simulation using a KrylovSchwarz Linear Solution Scheme. S. Abhyankar, E. Constantinescu, B. Smith, A. Flueck, and D. Maldonado. IEEE Transactions on Smart Grid, Vol.8, Issue 3, pp. 13781386, May 2017, DOI 10.1109/TSG.2016.2610863
Presentations
 Acceleration of Power System Dynamics (Transient Stability) Simulation. Electrical Engineering Department, Indian Institute of Technology, Mumbai.
2016
Papers
 A GraphBased Computational Framework for Simulation and Optimization of Coupled Infrastructure Networks. J. Jalving, S. Abhyankar, K. Kim, M. Herald, V. Zavala, IET Generation, Transmission, Distribution special issue on ‘Interfacing Techniques for Simulation Tools in Smart Grids’. 2017.
Presentations
 Power Grid Dynamics Modeling, Simulation, and Visualization Capabilities. Resilient Infrastructure Initiative seminar, Argonne National Laboratory, Dec. 2016.
 A Bundle Method for Online Transient Security Constrained Dispatch. F. Gilbert, S. Abhyankar, H. Zhang, and M. Anitescu. FERC Technical Conference to Increase RealTime and DayAhead Efficiency Through Software.
 Fast and Accurate Calculation of Dynamics Sensitivities using a Discrete Adjoint Approach. E. Constantinescu, S. Abhyankar, H. Zhang, and M. Anitescu,FERC Technical Conference to Increase RealTime and DayAhead Efficiency Through Software.
 Challenges in Largescale Power Grid Modeling and Data Integration. DOE ASCR Data + Compute Convergence Summit.
Reports
 Efficient Adjoint Computation of Hybrid Systems of Differential Algebraic Equations with Applications in Power Systems. H. Zhang, S. Abhyankar, E. Constantinescu, and M. Anitescu. ANL report ANL/MCSTM360.
2015
Papers

ImplicitlyCoupled Electromechanical and Electromagnetic Transient Analysis using a Frequency Dependent Network Equivalent. X. Zhang, A. Flueck, and S. Abhyankar. IEEE Transactions on Power Delivery, In print, 2015.
 Probability density function method for stochastic ODEs of power systems with uncertain power input. P. Wang, D. BarajasSolano, E. Constantinescu, S. Abhyankar, D. Ghosh, B. Smith, Z. Huang, and A. Tartakovsky. SIAM/ASA Journal on Uncertainty Quantification, vol. 3, no. 1, pp. 873896, 2015.
Presentations
 Simulation of Power Networks. S. Abhyankar, Tutorial and conference celebrating 20 years of PETSc in computational science.
 Realtime Simulation and Preventative Control of Power Blackouts. S. Abhyankar, Argonne Launchpad presentation
2014
Papers
 Equivalent Models for ImplicitlyCoupled Electromechanical and Electromagnetic Transient Analysis. X. Zhang, A. Flueck, and S. Abhyankar. Proceedings of the North American Power Symposium, September 2014.
 Dynamic Security Constrained Optimal Power Flow using Finite Difference Sensitivities. S. Abhyankar, V. Rao, and M. Anitescu. Proceedings of IEEE PES General Meeting, July 2014.
 Abstractions for expressing network problems in PETSc. S. Abhyankar, J. Brown, M. Knepley, F. Meier, and B. Smith. SIAM Workshop on Network Science, July 2014.
 Multiphysics solvers for implicitly coupled electromechanical and electromagnetic transients simulation. S. Abhyankar and A. J. Flueck. Proceedings of the IEEE Transmission and Distribution Conference and Exposition, April 2014.
 Fast power flow analysis using a hybrid currentpower balance formulation in rectangular coordinates. S. Abhyankar, Q. Cui, and A. J. Flueck. Proceedings of the IEEE Transmission and Distribution Conference and Exposition, April 2014.
 Evaluation of overlapping restricted additive Schwarz preconditioning for parallel solution of very large power flow problems. S. Abhyankar, B. Smith, and E. Constantinescu. Proceedings of the 3^{rd} International Workshop on High Performance Computing, Networking, and Analytics for the Power Grid, November 2013.
Presentations
 Dynamic Constrained Optimization of Power Grid using Adjoint Sensitivity Analysis. S. Abhyankar, V. Rao, and M. Anitescu. Minisymposium on Mathematics of Power Grid – Part I of III, SIAM Annual Meeting 2014.
 A Fully Implicit Approach for the Solution of Temporal Multiscale Problem with Application to Power Grid. S. Abhyankar, A. Flueck, and X. Zhang. Minisymposium on Numerical Methods for Power Grid Simulation, SIAM Annual Meeting 2014.
2013
Papers
 Interfacing Issues in Multiagent Simulation for Smart Grid Applications. X. Wang, P. Zhang, Z. Wang, V. Dinavahi, G. Chang, JA Martinez, A. Davoudi, A. MehriziSani, S. Abhyankar. IEEE Transactions on Power Delivery, July 2013.
 Parallelinspaceandtime scheme for implicitlycoupled electromechanical and electromagnetic transients simulation. S. G. Abhyankar, and A. J. Flueck.International Conference on Power System Transients, July 2013.
Presentations
 Evaluation of overlapping restricted additive Schwarz preconditioning for parallel solution of very large power flow problems. 3^{rd} International Workshop on High Performance Computing, Networking, and Analytics for the Power Grid, November 2013.
 Parallelinspaceandtime scheme for implicitlycoupled electromechanical and electromagnetic transients simulation. International Conference on Power System Transients, July 2013.
2012
Papers
 Realtime power system dynamics simulation using a parallel BlockJacobi preconditioned NewtonGMRES scheme. S. G. Abhyankar, and A. J. Flueck. Proceedings of the 2^{nd} International Workshop on High Performance Computing, Networking, and Analytics for the Power Grid, November 2012.
 An implicitly coupled solution approach for combined electromechanical and electromagnetic transients simulation. S . G. Abhyankar, and A. J. Flueck. Proceedings of the IEEE PES General Meeting, July 2012.
Presentations
 Realtime power system dynamics simulation using a parallel BlockJacobi preconditioned NewtonGMRES scheme. 2^{nd} International Workshop on High Performance Computing, Networking and Analytics for the Power Grid, November 2012.
 Using PETSc as a Testbed for developing and benchmarking parallel power system applications. Conference on Modeling, Simulation, and Optimization for the 21st Century Electric Power Grid, October 2012.
 Scalable Solution using PETSc for Multiple TimeScale Electrical Power Grid Dynamics Simulation. Minisympsium Presentation at SIAM parallel processing conference, February 2012.
 Developing Scalable Applications using the Portable Extensible Toolkit for Scientific Computation (PETSc). Parallel Computing Lab, Intel Labs, Bangalore, India, February 2012.
 Developing Scalable Applications using the Portable Extensible Toolkit for Scientific Computation (PETSc). SuperComputing Research Center (SERC),Indian Institute of Science, Bangalore, India, February 2012.
2011
Papers
 Development of a parallel threephase transient stability simulator for electrical power systems. S. G. Abhyankar, A. J. Flueck, X. Zhang, and H. Zhang. Proceedings of the 1st International Workshop on High Performance Computing, Networking, and Analytics for the Power Grid, November 2011.
 Using PETSc to develop scalable applications for the nextgeneration power grid. S. G. Abhyankar, B. Smith, H. Zhang, and A. J. Flueck. Proceedings of the 1st International Workshop on High Performance Computing, Networking, and Analytics for the Power Grid, November 2011.
Presentations
 Developing Scalable Applications using Portable Extensible Toolkit for Scientific Computation (PETSc) for the NextGeneration power grid. Power Systems Research Group, Washington State University, November 2011.
20082009
Papers
 A new confirmation of voltage collapse dynamics for power systems with constant power load models. S. G. Abhyankar, and A. J. Flueck. Proceedings of the North American Power Symposium, October 2009.
 Simulation of voltage collapse dynamics for power systems with constant power load models. S. G. Abhyankar, and A. J. Flueck. Proceedings of the IEEE PES General Meeting, July 2008.
Posters
 Software Library for Scalable MultiPhysics MultiScale Network Simulation: Application to Water Distribution Systems. D. A. Maldonado, S. Abhyankar, and H. Zhang. PETSc User Meeting 2016.
 Modernizing Future Electric Power Distribution Grids: Modeling, Analysis, and Implementation under Challenges. C. Chen, S. Abhyankar, R. Singh, X. Lu, J. Wang. Argonne National Laboratory Grid Day 2016.
 Dynamic Modeling and High Performance Computing Simulation of Power Grid. E. Constantinescu, S. Abhyankar, and M. Anitescu. Argonne National Laboratory Grid Day 2016.
 Understanding and Mitigating Cascading Blackouts. J. Qui and S. Abhyankar. Argonne National Laboratory Grid Day 2016.
Theses
 Development of an implicitly coupled electromechanical and electromagnetic transients simulator for power systems. Ph.D. Dissertation, July 2011.
 Simulating voltage collapse dynamics for power systems with constant power load models. Master’s Thesis, December 2006.